  "fields": [
  {{#vars}}
    {
      "name": "{{baseName}}",
      "type": {{^required}}["null", {{/required}}{{>typeProperty}}{{^required}}]{{/required}},
      "doc": "{{{description}}}"{{^required}},
      "default": null{{/required}}
    }{{^-last}},{{/-last}}
  {{/vars}}
  ]
